CN110636615B - Resource determination method, indication method, relay station and node - Google Patents

Resource determination method, indication method, relay station and node Download PDF

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Publication number
CN110636615B
CN110636615B CN201810646464.8A CN201810646464A CN110636615B CN 110636615 B CN110636615 B CN 110636615B CN 201810646464 A CN201810646464 A CN 201810646464A CN 110636615 B CN110636615 B CN 110636615B
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relay station
indication information
hop count
carried
node
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CN110636615A (en
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沈晓冬
潘学明
鲍炜
金巴
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Vivo Mobile Communication Co Ltd
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Vivo Mobile Communication Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Relay Systems (AREA)

Abstract

The invention discloses a resource determining method, an indicating method, a relay station and a node, wherein the resource determining method is applied to the relay station and comprises the following steps: receiving indication information from at least one node, wherein the at least one node is in communication connection with the relay station, and the at least one node is a node at a higher level of the relay station; and determining the resource configuration of the relay station according to the indication information. The embodiment of the invention can ensure that the resource configuration of the relay station can be determined when the relay station is transformed to a new host node, thereby realizing the optimization of communication quality according to the resource configuration.

Description

Resource determination method, indication method, relay station and node
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a resource determining method, an indicating method, a relay station, and a node.
Background
A Relay (Relay) technology in a wireless communication system is that one or more Relay nodes, which may also be called Relay stations, are added between a base station and a terminal, and are responsible for forwarding a wireless signal one or more times, that is, the wireless signal can reach the terminal only through multiple hops.
The wireless relay technology not only can be used for expanding cell coverage and compensating cell coverage blind points, but also can improve cell capacity through space resource multiplexing. For indoor coverage, the relay technology can also play a role in overcoming penetration loss and improving indoor coverage quality. Therefore, a research project integrated access Backhaul (INTEGRATED ACCESS AND Backhaul, abbreviated as IAB) is set up in the 5G NR system for researching related wireless relay technologies. The concept of an IAB node is similar to that of a wireless relay station. The relay station and the IAB node are not distinguished from each other unless otherwise specified hereinafter.
Taking a simpler two-hop relay as an example, the wireless relay divides a link between a base station and a terminal into a link between the base station and the relay station, and a total of two links between the relay station and the terminal, so that a link with poor quality is replaced by two links with good quality, and higher link capacity and better coverage are obtained.
As shown in fig. 1, a multi-hop wireless relay scenario is given, which is a 4-hop scenario, that is, a signal is forwarded from a host base station (donor gNB) to a final terminal (UE) through relay stations 2,4, and 5. The number of radio links in between is known as the "hop count".
In order to meet the effectiveness and robustness of communication, the relay node may change the host of the previous hop at any time in the process of communication, and this host may be a base station or a relay station. The node with better link quality is dynamically selected, or the node with shortest time delay, that is, the node with the least hop count is selected, so that the hop count of the relay station is continuously changed.
Because the hop count of the relay station is changed continuously, the relay station cannot know the hop count of the current relay station, and therefore the relay station cannot obtain the optimal resource allocation.
Disclosure of Invention
The embodiment of the invention provides a resource determining and indicating method, a relay station and a node, which solve the problem that the resource configuration of the relay station cannot be determined when the hop count of the relay station is continuously changed due to the fact that the relay station dynamically selects the node at the upper level in the prior art.
In a first aspect, an embodiment of the present invention provides a resource determining method, which is applied to a relay station, including:
receiving indication information from at least one node, wherein the at least one node is in communication connection with the relay station, and the at least one node is a node at a higher level of the relay station; and determining the resource configuration of the relay station according to the indication information.
In a second aspect, an embodiment of the present invention provides a resource indication method, which is applied to a node, and includes:
And sending indication information to the relay station, wherein the node is in communication connection with the relay station, and the indication information is used for indicating the relay station to determine the resource configuration of the relay station according to the indication information.
In a third aspect, an embodiment of the present invention further provides a relay station, including:
The receiving module is used for receiving indication information from at least one node, the at least one node is in communication connection with the relay station, and the at least one node is a node at a higher level of the relay station;
and the processing module is used for determining the resource configuration of the relay station according to the indication information.
In a fourth aspect, an embodiment of the present invention further provides a node, including:
The node is in communication connection with the relay station, and the indication information is used for indicating the relay station to determine the resource configuration of the relay station according to the indication information.
In a fifth aspect, embodiments of the present invention further provide a network device, where the network device includes a processor, a memory, and a computer program stored on the memory and executable on the processor, where the computer program when executed by the processor implements the steps of the resource determination method as described above, or implements the steps of the resource indication method as described above.
In a sixth aspect, embodiments of the present invention also provide a computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the resource determination method as described above, or implements the steps of the resource indication method as described above.
In this way, when the relay station receives the indication information sent by at least one node in communication connection with the relay station, the embodiment of the invention can determine the resource configuration of the relay station according to the indication information; therefore, when the relay station is transformed to a new host node, the resource configuration of the relay station can be determined, and the optimization of communication quality can be realized according to the resource configuration.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments of the present invention will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of communication connection between a relay station and a previous node in a multi-hop wireless relay scenario;
fig. 2 is a flowchart of a method for determining resources of a relay station according to an embodiment of the present invention;
Fig. 3 is a schematic structural diagram of a Synchronization SIGNAL AND PBCH Block (SSB for short);
FIG. 4 is an exemplary diagram of a relay station in communication with a plurality of superordinate nodes in a scenario of multi-hop wireless relay;
Fig. 5 is a block diagram of a relay station according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a network device according to an embodiment of the present invention.
Detailed Description
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort to a person skilled in the art.
The terms first, second and the like in the description and in the claims, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the application described herein may be implemented, for example, in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus. "and/or" in the specification and claims means at least one of the connected objects.
The techniques described herein are not limited to long term evolution (Long Time Evolution, LTE)/LTE evolution (LTE-Advanced, LTE-a) systems and may also be used for various wireless communication systems such as code division multiple access (Code Division Multiple Access, CDMA), time division multiple access (Time Division Multiple Access, TDMA), frequency division multiple access (Frequency Division Multiple Access, FDMA), orthogonal frequency division multiple access (Orthogonal Frequency Division Multiple Access, OFDMA), single-carrier frequency division multiple access (Single-carrier Frequency-Division Multiple Access, SC-FDMA), and other systems. The terms "system" and "network" are often used interchangeably. The CDMA system may implement radio technologies such as CDMA2000, universal terrestrial radio access (Universal Terrestrial Radio Access, UTRA for short), and the like. UTRA includes wideband CDMA (Wideband Code Division Multiple Access, WCDMA for short) and other CDMA variants. The TDMA system may implement a radio technology such as the global system for mobile communications (Global System for Mobile Communication, abbreviated GSM). The OFDMA system may implement radio technologies such as ultra mobile broadband (Ultra Mobile Broadband, UMB for short), evolved UTRA (Evolution-UTRA, E-UTRA for short), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, flash-OFDM, and the like. UTRA and E-UTRA are parts of the universal mobile telecommunications system (Universal Mobile Telecommunications System, abbreviated UMTS). LTE and higher LTE (e.g., LTE-a) are new UMTS releases that use E-UTRA. UTRA, E-UTRA, UMTS, LTE, LTE-a and GSM are described in the literature from an organization named "third generation partnership project" (3 rd Generation Partnership Project, 3GPP for short). CDMA2000 and UMB are described in the literature from an organization named "third generation partnership project 2" (3 GPP 2). The techniques described herein may be used for the systems and radio technologies mentioned above as well as for other systems and radio technologies. However, the following description describes an NR system for purposes of example and NR terminology is used in much of the description below, with the NR system being illustrated as an example, although the techniques may also be applied to applications other than NR system applications. It will be appreciated by those skilled in the art that the words are not to be construed as limiting the scope of the invention.
The following description provides examples and does not limit the scope, applicability, or configuration as set forth in the claims. Changes may be made in the function and arrangement of elements discussed without departing from the spirit and scope of the disclosure. Various examples may omit, substitute, or add various procedures or components as appropriate. For example, the described methods may be performed in an order different than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.
The relay station in the following embodiments of the present application may also be called an IAB node, a relay node, a base station, or the like, where the relay station is a network device, a network element, or the like in a relay scenario in a wireless communication system.
As shown in fig. 2, an embodiment of the present invention provides a resource determining method, applied to a relay station, including:
step 21, receiving indication information from at least one node, wherein the at least one node is in communication connection with the relay station, and the at least one node is a node at a higher level of the relay station;
in this step, the node communicatively connected to the relay station may be a previous node of the relay station, as shown in fig. 1, the previous node of the relay station 4 is the relay station 2, and the previous node of the relay station 5 is the relay station 4;
here, the node in communication with the relay station may be a plurality of upper nodes of the relay station, and as shown in fig. 1, the relay station 5 may be in communication with the relay station 4, may be in communication with the relay station 3 at the same time, or may be in communication with the relay station 7 at the same time.
In the scene, the relay station changes the host node of the previous hop at any time in the communication process so as to obtain a communication link with better quality or a communication link with shortest time delay. Taking the relay station 5 as an example, when the host node of the relay station is transformed into the relay station 4, the host node receives the instruction information from the relay station 4, where the instruction information is used to instruct the relay station 5 to acquire the resource information, so as to obtain the resource configuration information of the relay station 5.
And step 22, determining the resource configuration of the relay station according to the indication information.
In this embodiment, the relay station receives the indication information sent by the previous node and can determine the resource configuration of the relay station according to the indication information, so as to avoid the problem that the resource configuration of the relay station cannot be determined when the hop count of the relay station is continuously changed due to dynamic selection of the previous node.
In the embodiment of the present invention, as shown in fig. 1, when a relay station is communicatively connected to a previous node, that is, when the relay station receives indication information sent by a node communicatively connected to the relay station, the indication information may include:
1) Indication information carried by a physical broadcast channel (Physical Broadcast Channel, abbreviated as PBCH) of a Synchronization SIGNAL AND PBCH Block (SSB); or alternatively
2) Indication information carried by a physical downlink shared channel (Physical Downlink SHARED CHANNEL, abbreviated PDSCH); or alternatively
3) And the joint indication information of the information carried by the Physical Broadcast Channel (PBCH) of the Synchronous Signal Block (SSB) and the preset information.
Here, SSB means that in 5G NR, a primary synchronization signal (Primary Synchronization Signal, abbreviated as PSS), a secondary synchronization signal (Secondary Synchronization Signal, abbreviated as SSS), and a PBCH together form one signal SSB (SS/PBCH block), as shown in fig. 3, SSB occupies 4 orthogonal frequency division multiplexing (Orthogonal Frequency Division Multiplexing, abbreviated as OFDM) symbols in total in the time domain, and occupies 240 subcarriers (20 PRBs) in total in the frequency domain. The PRB is here physical resource block abbreviated as physical resource block, where PBCH is a physical broadcast channel, and may carry a main system information block (master information block, abbreviated as MIB).
In the above 1), the indication information of the PBCH bearer may be a hop count of the relay station or resource configuration information of the relay station, which is carried by the PBCH in the SSB;
The hop count of the relay station carried by the PBCH in the SSB herein may include: the hop count of the relay station indicated by a preset field of a PBCH-carried message in the SSB, or the hop count of the relay station indicated by a redundancy field of a MIB message carried by the PBCH in the SSB, or the hop count of the relay station carried by a redundancy resource of the PBCH in the SSB, or a pilot Demodulation reference signal (DMRS for short) carried by the PBCH in the SSB carries the hop count of the relay station.
The redundant resources of the PBCH are shown in fig. 3. The redundant field of the MIB message may be a spark field in the MIB message, where the preset field or the redundant field may be at least 1 bit.
In the 2) above, the indication information carried by the PDSCH may include: the remaining minimum system information (REMAINING MINIMUM SYSTEM INFORMATION, RMSI for short) carried by the PDSCH or indication information carried by other system information blocks (System Information Block, SIB for short) except the system information block SIB 1. Other SIB than SIB1 herein means Other SIBs, abbreviated OSI; of course, other broadcast messages carried by other PDSCH may also be used.
RMSI herein refers to supporting on-demand system information block (on-demand SIB) transmission in 5G NR, and considering as fast synchronization and access as possible, the necessary system information is divided into two parts: MIB and RMSI, other unnecessary information, read when needed. RMSI is substantially similar to SIB1 in LTE, informing of information such as uplink frequency (UL freq), uplink and downlink slot configuration (TDD configuration).
RMSI or OSI carried indication information may include: the RMSI or OSI carries the hop count of the relay station or the resource configuration information of the relay station.
The hop count of the relay station carried by RMSI or OSI herein may include: the hop count of the relay station indicated by the RMSI or OSI preset field, or the hop count of the relay station indicated by the RMSI or OSI redundant field. Also, the preset field or the redundant field herein may be at least 1 bit.
In the above 3), the joint indication information of the information carried by the PBCH of the SSB and the preset information may include: a first-level MIB carried by the PBCH in the SSB and a second-level MIB indicated by the first-level MIB, wherein a redundant field of a second-level MIB message indicates the hop count of the relay station or the resource configuration information of the relay station; wherein the predetermined resources carrying the second-level MIB are related to the resources of the first-level MIB or are notified by information carried in the first-level MIB.
At this time, the previous node of the relay station broadcasts an SSB, where the SSB carries a first MIB, the relay station reads a second MIB from a predetermined resource through the first MIB, where the predetermined resource may be related to information such as a time position, a frequency position, a Quasi Co-Location (QCL) configuration, and/or an SSB number of the first MIB or be notified by information carried in the first MIB, and physical resources occupied by the second MIB are different from the first MIB, for example, may not be on resources occupied by the SSB; and the relay station reads the second-level MIB on the preset resource to obtain the hop count of the relay station or the resource configuration information of the relay station.
In an embodiment of the present invention, the resource configuration of the relay station may include, but is not limited to: the configuration of pilots of the relay station, the position configuration of the synchronization signal, the position configuration of the radio transmission resource, and the like.
Based on the above 1), 2) and 3), step 22 may include: and determining the resource configuration of the relay station according to the hop count of the relay station or the resource configuration information of the relay station.
Specifically, when the relay station receives the hop count of the relay station indicated by the preset field of the PBCH bearer message in the SSB, or the hop count of the relay station indicated by the redundant field of the MIB message of the PBCH bearer in the SSB, or the hop count of the relay station carried by the pilot DMRS of the PBCH bearer in the SSB, or the hop count of the relay station indicated by the RMSI or the OSI preset field, or the hop count of the relay station indicated by the RMSI or the OSI redundant field, or the hop count of the relay station indicated by the redundant field of the second-level MIB message, the hop count of the relay station can be directly obtained from the corresponding field of the indication information, then the relay station can obtain the resource allocation information of the relay station according to the hop count of the relay station, when knowing the hop count, the relay station can determine that the hop count is better than the corresponding hop count of the own allocation information, for example, when the hop count of the relay station is better than the hop count of the corresponding resource allocation information, and the hop count of the relay station is used for communication, and the hop count of the communication is further using the sub-frame configuration resources, such as 3, and the hop count is further using the sub-frame configuration, and the hop count is 3, and the sub-frame configuration is further used, and the communication is 3, and the hop is carried out by using the quality and the sub-frame is 3 and the quality is further used, and the frame is 3 and the frame configuration and the quality is used;
Similarly, when the relay station receives the resource configuration information of the relay station carried by the PBCH, or RMSI or the resource configuration information of the relay station carried by the OSI, or the redundant field of the second-level MIB message indicates the resource configuration information of the relay station, the relay station may directly decode the received information to obtain the resource configuration information of the relay station, and further communicate by using the resource configuration information, so as to obtain better communication quality.
In another embodiment of the present invention, as shown in fig. 4, when a relay station is communicatively connected to a plurality of previous nodes, that is, when the relay station receives indication information sent by at least two nodes communicatively connected to the relay station, the indication information may include: the hop count of the at least two previous level nodes.
Fig. 4 shows a scenario in which a relay station is communicatively connected to two upper nodes, similar to a scenario in which a plurality of upper nodes are communicatively connected. Accordingly, in the step 22, the method may include:
step 221), determining the hop count of the relay station according to the hop counts of the at least two previous level nodes; for example, the hop count of the relay station may be determined by:
A. Determining the minimum value +1 of the hop counts of at least two previous-stage nodes as the hop count of the relay station;
B. Determining the maximum value +1 of the hop counts of at least two previous-stage nodes as the hop count of the relay station;
C. by the formula: the said Determining the middle
The hop count of the relay station, wherein p k is the hop count of the previous level node, N is the number of at least two previous level nodes, floor is the maximum integer which returns to be less than or equal to the appointed expression,For the specified expression, k is an integer from 1 to N.
Step 222) determining the resource configuration of the relay station according to the hop count of the relay station.
Taking the example that the relay station 5 is respectively in communication connection with the relay station 4 and the relay station 3, and when the hop numbers of the relay station 3 and the relay station 4 are different, the hop numbers of the relay station 5 can be determined based on the hop numbers of the relay station 3 and the relay station 4:
Such as: hop count=min for node 5 (hop count for node 3, hop count for node 4) +1;
or hop count=max for node 5 (hop count for node 3, hop count for node 4) +1;
Or hop count of node 5 = floor ((hop count of node 3 + hop count of node 4)/2) +1.
Of course, when the hop counts of the relay station 3 and the relay station 4 are the same, the determination may be performed in the same manner as described above, for example, when the hop counts of the relay station 3 and the relay station 4 are the minimum, one may be selected as the hop count of the relay station; the maximum value may be similarly selected from the group consisting of the number of hops taken as the relay station.
In the above embodiment of the present invention, when a relay station receives indication information sent by at least one node communicatively connected to the relay station, the resource configuration of the relay station may be determined according to the indication information; therefore, the relay station can realize optimization of communication quality according to the resource configuration.
Another embodiment of the present invention further provides a resource indication method applied to a node, where the node may be a home base station in a relay scenario, or may be an upstream node with a next-hop relay node, such as a relay station 4, a relay station 2, etc. in fig. 1, or may be a relay station 4, a relay station 3 in fig. 4, where the indication method includes: and sending indication information to the relay station, wherein the node is in communication connection with the relay station, and the indication information is used for indicating the relay station to determine the resource configuration of the relay station according to the indication information.
Wherein, when the relay station is in communication connection with one node, the indication information includes: the indication information carried by the physical broadcast channel PBCH of the synchronous signal block SSB, or the indication information carried by the physical downlink shared channel PDSCH, or the joint indication information of the information carried by the physical broadcast channel PBCH of the synchronous signal block SSB and the preset information.
Here, the indication information carried by the PBCH of the SSB includes: the hop count of the relay station or the resource configuration information of the relay station carried by the PBCH in the SSB.
Wherein the hop count of the relay station carried by the PBCH in the SSB includes: the hop count of the relay station indicated by a preset field of a message carried by a PBCH in the SSB, or the hop count of the relay station indicated by a redundant field of a master system information block MIB message carried by a PBCH in the SSB, or the hop count of the relay station carried by a redundant resource of a PBCH in the SSB, or the hop count of the relay station carried by a pilot DMRS carried by a PBCH in the SSB.
The indication information carried by the PDSCH here includes: remaining minimum system information RMSI carried by PDSCH or indication information carried by SIBs other than system information block SIB 1.
Wherein, the RMSI or OSI carried indication information may include: the RMSI or OSI carries the hop count of the relay station or the resource configuration information of the relay station.
The hop count of the RMSI or the relay station carried by OSI may include: the hop count of the relay station indicated by the RMSI or OSI preset field, or the hop count of the relay station indicated by the RMSI or OSI redundant field.
The joint indication information of the information carried by the PBCH of the SSB and the preset information includes: a first-level MIB carried by the PBCH in the SSB and a second-level MIB indicated by the first-level MIB, wherein a redundant field of a second-level MIB message indicates the hop count of the relay station or the resource configuration information of the relay station; wherein the predetermined resource carrying the second MIB is related to the resource of the first MIB or is informed by information carried in the first MIB, and the physical resource occupied by the second MIB is different from the first MIB, for example, may not be on the resource occupied by the SSB.
When the relay station is in communication connection with one node, the relay station obtains the resource configuration of the relay station according to the hop count of the relay station or the resource configuration information of the relay station; specifically, the relay station directly decodes the information received by the relay station, and determines the resource configuration of the relay station.
In an embodiment of the present invention, when the relay station is communicatively connected to at least two nodes, the indication information includes: the hop count of the at least two previous level nodes. At this time, the relay station determines the hop count of the relay station according to the hop counts of the at least two previous-level nodes; and determining the resource configuration of the relay station according to the hop count of the relay station.
In this embodiment, a method for indicating the resource configuration of the relay station is provided, so that when the relay station changes the host node, the resource configuration of the relay station can be determined, and optimization of communication quality can be realized according to the resource configuration. It should be noted that all the implementation manners in the above-mentioned resource determining method are applicable to the embodiment of the resource indicating method.
As shown in fig. 5, an embodiment of the present invention provides a relay station including:
A receiving module 51, configured to receive indication information from at least one node, where the at least one node is communicatively connected to the relay station, and the at least one node is a node at a previous stage of the relay station;
and a processing module 52, configured to determine a resource configuration of the relay station according to the indication information.
When the receiving module 51 receives the indication information sent by the node connected to the relay station, the indication information includes: 1) indication information carried by a physical broadcast channel PBCH of the synchronization signal block SSB, or 2) indication information carried by a physical downlink shared channel PDSCH, or 3) joint indication information of information carried by the physical broadcast channel PBCH of the synchronization signal block SSB and preset information;
In the above 1), the indication information of the PBCH bearer may be a hop count of the relay station or resource configuration information of the relay station, which is carried by the PBCH in the SSB;
The hop count of the relay station carried by the PBCH in the SSB herein may include: the hop count of the relay station indicated by a preset field of a PBCH-carried message in the SSB, or the hop count of the relay station indicated by a redundancy field of a MIB message carried by the PBCH in the SSB, or the hop count of the relay station carried by a redundancy resource of the PBCH in the SSB, or the hop count of the relay station carried by a pilot DMRS carried by the PBCH in the SSB.
The redundant resources of the PBCH are here like the redundant resource locations in fig. 3. The redundant field of the MIB message may be a spark field in the MIB message, where the preset field or the redundant field may be at least 1 bit.
In the 2) above, the indication information carried by the PDSCH may include: RMSI carried by the PDSCH or indication information carried by OSI. Other broadcast messages carried by other PDSCH are also possible. The OSI here may be other SIBs than SIB 1.
RMSI herein refers to supporting on-demand system information block (on-demand SIB) transmission in 5G NR, and considering as fast synchronization and access as possible, the necessary system information is divided into two parts: MIB and RMSI, other unnecessary information, read when needed. RMSI is substantially similar to SIB1 in LTE, informing of information such as uplink frequency (UL freq), uplink and downlink slot configuration (TDD configuration).
RMSI or OSI carried indication information may include: the RMSI or OSI carries the hop count of the relay station or the resource configuration information of the relay station.
The hop count of the relay station carried by RMSI or OSI herein may include: the hop count of the relay station indicated by the RMSI or OSI preset field, or the hop count of the relay station indicated by the RMSI or OSI redundant field. Also, the preset field or the redundant field herein may be at least 1 bit.
In the above 3), the joint indication information of the information carried by the PBCH of the SSB and the preset information may include: a first-level MIB carried by the PBCH in the SSB and a second-level MIB indicated by the first-level MIB, wherein a redundant field of a second-level MIB message indicates the hop count of the relay station or the resource configuration information of the relay station; wherein the predetermined resources carrying the second-level MIB are related to the resources of the first-level MIB or are notified by information carried in the first-level MIB.
At this time, the node at the previous stage of the relay station broadcasts an SSB, the SSB carries a first-stage MIB, the relay station reads a second-stage MIB on a predetermined resource through the first-stage MIB, the predetermined resource is related to information such as a time position, a frequency position, QCL configuration and/or SSB number of the first-stage MIB (or SSB), or is notified by information carried in the first-stage MIB, and physical resources occupied by the second-stage MIB are different from the first-stage MIB, for example, may not be on resources occupied by the SSB; and the relay station reads the second-level MIB on the preset resource to obtain the hop count of the relay station or the resource configuration information of the relay station.
In an embodiment of the present invention, the resource configuration of the relay station may include: configuration information of pilots of the relay station, location configuration information of synchronization signals, location configuration information of wireless transmission resources, and the like.
Based on the above 1), 2) and 3), the processing module 52 is specifically configured to: and determining the resource configuration of the relay station according to the hop count of the relay station or the resource configuration information of the relay station.
Specifically, when receiving the hop count of the relay station indicated by the preset field of the PBCH bearer message in the SSB, or the hop count of the relay station indicated by the redundant field of the MIB message of the PBCH bearer in the SSB, or the hop count of the relay station carried by the redundant resource bearer of the PBCH in the SSB, or the hop count of the relay station carried by the pilot DMRS carried by the PBCH in the SSB, or the hop count of the relay station indicated by the preset field of RMSI or OSI, or the hop count of the relay station indicated by the redundant field of the RMSI or OSI, or the hop count of the relay station indicated by the redundant field of the second-level MIB message, the processing module may directly obtain the hop count of the relay station from the corresponding field of the indication information, and then, the relay station may obtain the resource configuration information of the relay station according to the hop count of itself, and further use the resource configuration information to perform communication to obtain better communication quality;
Similarly, when the receiving module 51 of the relay station receives the resource configuration information of the relay station carried by the PBCH, or RMSI or the resource configuration information of the relay station carried by the OSI, or the redundant field of the second-level MIB message indicates the resource configuration information of the relay station, the processing module 52 may directly decode the received information to obtain the resource configuration information of the relay station, and further use the resource configuration information to perform communication, so as to obtain better communication quality.
In another embodiment of the present invention, as shown in fig. 4, when a relay station is communicatively connected to a plurality of previous nodes, that is, when the relay station receives indication information sent by at least two nodes communicatively connected to the relay station, the indication information may include: the hop count of the at least two previous level nodes.
Fig. 4 shows a scenario in which a relay station is communicatively connected to two upper nodes, similar to a scenario in which a plurality of upper nodes are communicatively connected. Accordingly, the processing module 52 may specifically include:
the first processing unit is used for determining the hop count of the relay station according to the hop counts of the at least two previous-stage nodes;
for example, the hop count of the relay station may be determined by:
A. determining the minimum value of the hop counts of at least two previous-stage nodes as the hop count of the relay station;
B. Determining the maximum value of the hop counts of at least two previous-stage nodes as the hop count of the relay station;
C. by the formula: the said Determining the middle
The hop count of the relay station, wherein p k is the hop count of the previous level node, N is the number of at least two previous level nodes, floor is the maximum integer which returns to be less than or equal to the appointed expression,For the specified expression, k is an integer from 1 to N.
And the second processing unit is used for determining the resource configuration of the relay station according to the hop count of the relay station.
Taking the example that the relay station 5 is respectively in communication connection with the relay station 4 and the relay station 3, and when the hop numbers of the relay station 3 and the relay station 4 are different, the hop numbers of the relay station 5 can be determined based on the hop numbers of the relay station 3 and the relay station 4:
Such as: hop count=min for node 5 (hop count for node 3, hop count for node 4) +1;
or hop count=max for node 5 (hop count for node 3, hop count for node 4) +1;
Or hop count of node 5 = floor ((hop count of node 3 + hop count of node 4)/2) +1.
In the above embodiment of the present invention, when a relay station receives indication information sent by at least one node communicatively connected to the relay station, the resource configuration of the relay station may be determined according to the indication information; therefore, the relay station realizes optimization of communication quality according to the resource configuration.
The embodiment of the present invention further provides a node, where the node may be a home base station in a relay scenario, or may be an upstream node with a next-hop relay node, such as a relay station 4, a relay station 2 in fig. 1, or may be a relay station 4, a relay station 3 in fig. 4, where the node includes:
The node is in communication connection with the relay station, and the indication information is used for indicating the relay station to determine the resource configuration of the relay station according to the indication information.
Wherein, when the relay station is in communication connection with one node, the indication information includes: the indication information carried by the physical broadcast channel PBCH of the synchronous signal block SSB, or the indication information carried by the physical downlink shared channel PDSCH, or the joint indication information of the information carried by the physical broadcast channel PBCH of the synchronous signal block SSB and the preset information.
Here, the indication information carried by the PBCH of the SSB includes: the hop count of the relay station or the resource configuration information of the relay station carried by the PBCH in the SSB.
Wherein the hop count of the relay station carried by the PBCH in the SSB includes: the hop count of the relay station indicated by a preset field of a message carried by a PBCH in the SSB, or the hop count of the relay station indicated by a redundant field of a master system information block MIB message carried by a PBCH in the SSB, or the hop count of the relay station carried by a redundant resource of a PBCH in the SSB, or the hop count of the relay station carried by a pilot DMRS carried by a PBCH in the SSB.
The indication information carried by the PDSCH here includes: remaining minimum system information RMSI carried by PDSCH or indication information carried by SIB other than SIB 1. SIBs other than SIB1 are abbreviated as OSI, where the RMSI or OSI carried indication information may include: the RMSI or OSI carries the hop count of the relay station or the resource configuration information of the relay station.
The hop count of the RMSI or the relay station carried by OSI may include: the hop count of the relay station indicated by the RMSI or OSI preset field, or the hop count of the relay station indicated by the RMSI or OSI redundant field.
The joint indication information of the information carried by the PBCH of the SSB and the preset information includes: a first-level MIB carried by the PBCH in the SSB and a second-level MIB indicated by the first-level MIB, wherein a redundant field of a second-level MIB message indicates the hop count of the relay station or the resource configuration information of the relay station; wherein the predetermined resource carrying the second MIB is related to the resource of the first MIB or is informed by information carried in the first MIB, and the physical resource occupied by the second MIB is different from the first MIB, for example, may not be on the resource occupied by the SSB.
When the relay station is in communication connection with one node, the relay station determines the resource configuration of the relay station according to the hop count of the relay station or the resource configuration information of the relay station; specifically, the relay station directly decodes the information received by the relay station to obtain the resource configuration of the relay station.
In an embodiment of the present invention, when the relay station is communicatively connected to at least two nodes, the indication information includes: the hop count of the at least two previous level nodes. At this time, the relay station determines the hop count of the relay station according to the hop counts of the at least two previous-level nodes; and determining the resource configuration of the relay station according to the hop count of the relay station.
In this embodiment, the resource configuration of the relay station may include: configuration information of pilots of the relay station, location configuration information of synchronization signals, location configuration information of wireless transmission resources, and the like. The node indicates the resource allocation information of the relay station to the relay station, so that the relay station can also determine the resource allocation of the relay station when the host node changes, and the optimization of communication quality is realized according to the resource allocation.
It should be noted that, it should be understood that the above division of each module in the relay station or the node is only a division of a logic function, and may be fully or partially integrated into one physical entity or may be physically separated. And these modules may all be implemented in software in the form of calls by the processing element; or can be realized in hardware; the method can also be realized in a form of calling software by a processing element, and the method can be realized in a form of hardware by a part of modules. For example, the receiving module may be a processing element that is set up separately, may be implemented in a chip of the above apparatus, or may be stored in a memory of the above apparatus in the form of program codes, and may be called by a processing element of the above apparatus to execute the functions of the above determining module. The implementation of the other modules is similar. In addition, all or part of the modules can be integrated together or can be independently implemented. The processing element described herein may be an integrated circuit having signal processing capabilities. In implementation, each step of the above method or each module above may be implemented by an integrated logic circuit of hardware in a processor element or an instruction in a software form.
For example, the modules above may be one or more integrated circuits configured to implement the methods above, such as: one or more Application SPECIFIC INTEGRATED Circuits (ASIC), or one or more microprocessors (DIGITAL SIGNAL processor, DSP), or one or more field programmable gate arrays (Field Programmable GateArray, FPGA), etc. For another example, when a module above is implemented in the form of a processing element scheduler code, the processing element may be a general-purpose processor, such as a central processing unit (Central Processing Unit, CPU) or other processor that may invoke the program code. For another example, the modules may be integrated together and implemented in the form of a system-on-a-chip (SOC).
Embodiments of the present invention also provide a network device comprising a processor, a memory and a computer program stored on the memory and executable on the processor, which when executed by the processor, implements the steps of the resource determination method as described above, or implements the steps of the resource indication method as described above. The network device may be the above-mentioned relay station, a node at a higher level of the relay station, or a home base station of the relay station.
Embodiments of the present invention also provide a computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the resource determination method as described above, or implements the steps of the resource indication method as described above.
Specifically, as shown in fig. 6, the network device 600 includes: an antenna 63, a transceiver 62, and a baseband device. The antenna 63 is connected to the transceiver 62. In the uplink direction, the transceiver 62 receives information via the antenna 63 and transmits the received information to the baseband device for processing. In the downstream direction, the baseband device processes the information to be transmitted and transmits it to the transceiver 62, and the transceiver 62 processes the received information and transmits it via the antenna 63.
The method performed by the network device in the above embodiments may be implemented in a baseband apparatus comprising a processor 65 and a memory 66.
The baseband apparatus may, for example, comprise at least one baseband board, on which a plurality of chips are disposed, as shown in fig. 6, where one chip, for example, a processor 65, is connected to a memory 66, so as to invoke a program in the memory 66 to perform the network device operations shown in the above method embodiment.
The baseband apparatus may further include a bus interface 64 coupled to the processor 65, memory 66, etc. via the bus 61 and also communicatively coupled to the transceiver 62 for interacting with the transceiver 62, such as a common public radio interface (common public radio interface, CPRI for short).
The processor may be a processor, or may be a generic term for a plurality of processing elements, e.g., the processor may be a CPU, an ASIC, or one or more integrated circuits configured to implement the methods performed by the network devices described above, e.g.: one or more microprocessor DSPs, or one or more field programmable gate array FPGAs, etc. The memory element may be one memory or may be a collective term for a plurality of memory elements.
The memory 66 may be volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an electrically Erasable ROM (ELECTRICALLY EPROM, EEPROM), or a flash Memory. The volatile memory may be a random access memory (Random Access Memory, RAM for short) which acts as an external cache. By way of example, and not limitation, many forms of RAM are available, such as static random access memory (STATIC RAM, SRAM), dynamic random access memory (DYNAMIC RAM, DRAM), synchronous Dynamic Random Access Memory (SDRAM), double data rate Synchronous dynamic random access memory (Double DATA RATE SDRAM, ddr SDRAM), enhanced Synchronous dynamic random access memory (ENHANCED SDRAM, ESDRAM), synchronous link dynamic random access memory (SYNCHLINK DRAM, SLDRAM), and direct memory bus random access memory (Direct Rambus RAM, DRRAM). The memory 66 described herein is intended to comprise, without being limited to, these and any other suitable types of memory.
Specifically, the network device of the embodiment of the present invention further includes: a computer program stored on the memory 66 and executable on the processor 65, the processor 65 invoking the computer program in the memory 66 to perform the methods described in the embodiments above.
In particular, the computer program, when invoked by the processor 65, is operable to perform: receiving indication information sent by at least one node in communication connection with the relay station, wherein the at least one node is a node at the upper stage of the relay station; and determining the resource configuration of the relay station according to the indication information.
When receiving indication information sent by a node in communication connection with the relay station, the indication information comprises: the indication information carried by the physical broadcast channel PBCH of the synchronous signal block SSB, or the indication information carried by the physical downlink shared channel PDSCH, or the joint indication information of the information carried by the physical broadcast channel PBCH of the synchronous signal block SSB and the preset information.
The indication information carried by the physical broadcast channel PBCH of the synchronization signal block SSB includes: the hop count of the relay station or the resource configuration information of the relay station carried by the PBCH in the SSB.
The hop count of the relay station carried by the PBCH in the SSB includes: the hop count of the relay station indicated by a preset field of a message carried by a PBCH in the SSB, or the hop count of the relay station indicated by a redundant field of a master system information block MIB message carried by a PBCH in the SSB, or the hop count of the relay station carried by a redundant resource of a PBCH in the SSB, or the hop count of the relay station carried by a pilot DMRS carried by a PBCH in the SSB.
The indication information carried by the physical downlink shared channel PDSCH comprises: RMSI carried by the PDSCH or indication information carried by OSI. The OSI here may be other SIBs than SIB 1.
The RMSI or OSI carried indication information includes: the RMSI or OSI carries the hop count of the relay station or the resource configuration information of the relay station.
The hop count of the relay station carried by RMSI or OSI includes: the hop count of the relay station indicated by the RMSI or OSI preset field, or the hop count of the relay station indicated by the RMSI or OSI redundant field.
The joint indication information of the information carried by the physical broadcast channel PBCH of the synchronization signal block SSB and the preset information includes: a first-level MIB carried by the PBCH in the SSB and a second-level MIB indicated by the first-level MIB, wherein a redundant field of a second-level MIB message indicates the hop count of the relay station or the resource configuration information of the relay station; wherein the predetermined resources carrying the second MIB are related to the resources of the first MIB.
According to the indication information, determining the resource configuration of the relay station comprises the following steps: and determining the resource configuration of the relay station according to the hop count of the relay station or the resource configuration information of the relay station.
When receiving indication information sent by at least two nodes in communication connection with the relay station, the indication information comprises: the hop count of the at least two previous level nodes. According to the indication information, determining the resource configuration of the relay station comprises the following steps: determining the hop count of the relay station according to the hop counts of the at least two previous-stage nodes; and determining the resource configuration of the relay station according to the hop count of the relay station.
The network device may be a base station (Base Transceiver Station, BTS) in global mobile communication (Global System of Mobile communication, GSM) or code division multiple access (Code Division Multiple Access, CDMA), a base station (NodeB, NB) in wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA), an evolved base station (Evolutional Node B, eNB or eNodeB) in LTE, a relay station or access point, or a base station in a future 5G network, etc., which are not limited herein.
When the relay station receives the indication information sent by at least one node in communication connection with the relay station, the embodiment of the invention can determine the resource configuration of the relay station according to the indication information; therefore, the relay station can determine the resource configuration of the relay station, and the optimization of communication quality can be realized according to the resource configuration.
The embodiments of the present invention have been described above with reference to the accompanying drawings, but the present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present invention and the scope of the claims, which are to be protected by the present invention.

Claims (13)

1. A resource determining method applied to a relay station, comprising:
receiving indication information from at least one node, wherein the at least one node is in communication connection with the relay station, and the at least one node is a node at a higher level of the relay station;
Determining the resource configuration of the relay station according to the indication information;
upon receiving indication information from a node, the indication information includes:
Indication information borne by a physical broadcast channel PBCH of the synchronous signal block SSB, or indication information borne by a physical downlink shared channel PDSCH, or joint indication information of information borne by the physical broadcast channel PBCH of the synchronous signal block SSB and preset information;
the indication information carried by the physical broadcast channel PBCH of the synchronization signal block SSB includes: the hop count of the relay station;
The indication information carried by the physical downlink shared channel PDSCH comprises: the remaining minimum system information RMSI or indication information carried by SIBs other than the system information block SIB 1;
the RMSI or SIB carries indication information including: the hop count of the relay station;
The joint indication information of the information carried by the physical broadcast channel PBCH of the synchronization signal block SSB and the preset information includes:
a first-stage main system information block (MIB) borne by a PBCH in the SSB and a second-stage main system information block (MIB) indicated by the first-stage MIB, wherein a redundant field of a second-stage MIB message indicates the hop count of the relay station;
When receiving indication information from at least two nodes, the indication information comprises: the hop count of the at least two previous level nodes.
2. The resource determining method according to claim 1, wherein in the case where the indication information is carried by the PBCH of the SSB, the hop count of the relay station includes:
The hop count of the relay station indicated by the preset field of the PBCH-carried message, or the hop count of the relay station indicated by the redundant field of the master system information block MIB message carried by the PBCH, or the hop count of the relay station carried by the redundant resource of the PBCH, or the hop count of the relay station carried by the pilot demodulation reference signal DMRS carried by the PBCH.
3. The resource determination method according to claim 1, wherein, in the case where the indication information is carried by the PDSCH, the hop count of the relay station includes: the hop count of the relay station indicated by the RMSI or preset field of SIB, or the hop count of the relay station indicated by the RMSI or redundant field of SIB.
4. The resource determination method according to claim 1, wherein determining the resource configuration of the relay station according to the indication information comprises:
and determining the resource configuration of the relay station according to the hop count of the relay station.
5. The resource determination method according to claim 1, wherein determining the resource configuration of the relay station according to the indication information comprises:
Determining the hop count of the relay station according to the hop counts of the at least two previous-stage nodes;
and determining the resource configuration of the relay station according to the hop count of the relay station.
6. The resource determining method according to claim 5, wherein determining the hop count of the relay station according to the hop counts of the at least two previous level nodes comprises:
Adding 1 to the minimum value of the hop counts of at least two previous-stage nodes to determine the hop counts of the relay station;
Or alternatively
Adding 1 to the maximum value of the hop counts of at least two previous-stage nodes to determine the hop counts of the relay station;
Or alternatively
By the formula: the saidDetermining the hop count of the relay station, wherein p k is the hop count of the previous level node, N is the number of at least two previous level nodes, floor is the maximum integer returned to be less than or equal to the specified expression,/>For the specified expression, k is an integer from 1 to N.
7. A resource indication method applied to a node, comprising:
Sending indication information to a relay station, wherein the node is in communication connection with the relay station, and the indication information is used for indicating the relay station to determine the resource configuration of the relay station according to the indication information;
when the relay station is in communication connection with one node, the indication information comprises:
Indication information borne by a physical broadcast channel PBCH of the synchronous signal block SSB, or indication information borne by a physical downlink shared channel PDSCH, or joint indication information of information borne by the physical broadcast channel PBCH of the synchronous signal block SSB and preset information;
the indication information carried by the physical broadcast channel PBCH of the synchronization signal block SSB includes: the hop count of the relay station;
The indication information carried by the physical downlink shared channel PDSCH comprises: the remaining minimum system information RMSI or indication information carried by SIBs other than the system information block SIB 1;
the RMSI or SIB carries indication information including: the hop count of the relay station;
The joint indication information of the information carried by the physical broadcast channel PBCH of the synchronization signal block SSB and the preset information includes:
a first-stage main system information block (MIB) borne by a PBCH in the SSB and a second-stage main system information block (MIB) indicated by the first-stage MIB, wherein a redundant field of a second-stage MIB message indicates the hop count of the relay station;
When the relay station is in communication connection with at least two nodes, the indication information comprises: the hop count of the at least two previous level nodes.
8. The resource indication method of claim 7, wherein in case the indication information is carried by the PBCH of the SSB, the hop count of the relay station comprises:
The hop count of the relay station indicated by the preset field of the PBCH-carried message, or the hop count of the relay station indicated by the redundant field of the master system information block MIB message carried by the PBCH, or the hop count of the relay station carried by the redundant resource of the PBCH, or the hop count of the relay station carried by the pilot demodulation reference signal DMRS carried by the PBCH.
9. The resource indication method of claim 7, wherein, in the case where the indication information is carried by the PDSCH, the hop count of the relay station includes: the hop count of the relay station indicated by the RMSI or preset field of SIB, or the hop count of the relay station indicated by the RMSI or redundant field of SIB.
10. A relay station, comprising:
The receiving module is used for receiving indication information from at least one node, the at least one node is in communication connection with the relay station, and the at least one node is a node at a higher level of the relay station;
the processing module is used for determining the resource configuration of the relay station according to the indication information;
When the receiving module receives indication information from a node, the indication information comprises: indication information borne by a physical broadcast channel PBCH of the synchronous signal block SSB, or indication information borne by a physical downlink shared channel PDSCH, or joint indication information of information borne by the physical broadcast channel PBCH of the synchronous signal block SSB and preset information;
the receiving module receives indication information from at least two nodes, wherein the indication information comprises: the hop count of the at least two previous level nodes;
the indication information carried by the physical broadcast channel PBCH of the synchronization signal block SSB includes: the hop count of the relay station;
The indication information carried by the physical downlink shared channel PDSCH comprises: the remaining minimum system information RMSI or indication information carried by SIBs other than the system information block SIB 1;
the RMSI or SIB carries indication information including: the hop count of the relay station;
The joint indication information of the information carried by the physical broadcast channel PBCH of the synchronization signal block SSB and the preset information includes:
And the redundant field of the second-level MIB message indicates the hop count of the relay station.
11. A node, comprising:
The node is in communication connection with the relay station, and the indication information is used for indicating the relay station to determine the resource configuration of the relay station according to the indication information;
when the relay station is in communication connection with one node, the indication information comprises:
Indication information borne by a physical broadcast channel PBCH of the synchronous signal block SSB, or indication information borne by a physical downlink shared channel PDSCH, or joint indication information of information borne by the physical broadcast channel PBCH of the synchronous signal block SSB and preset information;
when the relay station is in communication connection with at least two nodes, the indication information comprises: the hop count of the at least two previous level nodes;
the indication information carried by the physical broadcast channel PBCH of the synchronization signal block SSB includes: the hop count of the relay station;
The indication information carried by the physical downlink shared channel PDSCH comprises: the remaining minimum system information RMSI or indication information carried by SIBs other than the system information block SIB 1;
the RMSI or SIB carries indication information including: the hop count of the relay station;
The joint indication information of the information carried by the physical broadcast channel PBCH of the synchronization signal block SSB and the preset information includes:
And the redundant field of the second-level MIB message indicates the hop count of the relay station.
12. A network device comprising a processor, a memory and a computer program stored on the memory and executable on the processor, which when executed by the processor, performs the steps of the resource determination method according to any one of claims 1 to 6 or the steps of the resource indication method according to any one of claims 7 to 9.
13. A computer readable storage medium, characterized in that the computer readable storage medium has stored thereon a computer program which, when executed by a processor, implements the steps of the resource determination method according to any of claims 1 to 6 or the steps of the resource indication method according to any of claims 7 to 9.
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